Wang J, Yang Y, Guo S, Chen Y, Yang C, Ji H, Song X, Zhang F, Jiang Z, Ma Y, Li Y, Du A, Jin L, Reveille JD, Zou H, Zhou X. Association between copy number variations of HLA-DQA1 and ankylosing spondylitis in the Chinese Han population.
Genes Immun 2013;
14:500-3. [PMID:
24048351 PMCID:
PMC3855587 DOI:
10.1038/gene.2013.46]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 08/02/2013] [Accepted: 08/05/2013] [Indexed: 11/20/2022]
Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory disease with complex genetic traits. Multiple sequence variations have been associated with AS, but explained only a proportion of heritability. The studies herein aimed to explore potential associations between genomic copy number variation (CNV) and AS of Han Chinese. Five AS patients were examined with the high-density comparative genomic hybridization (CGH) microarrays in the first screen test for AS associated CNVs. A total of 533 AS patients and 792 unrelated controls were examined in confirmation studies with the AccuCopy assays. A significant association was observed between the CNV of the HLA-DQA1 and AS. Comparing with controls, AS patients showed an aberrant copy number (CN), and significantly increased number of patients had more than 2 copies of the HLA-DQA1. Therefore, CNV of the HLA-DQA1 may play an important role in susceptibility to AS in Han Chinese population.
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